Insize 3352-50A, HIGH PRECISION DIGITAL BLADE MICROMETERS/SNAP GAGE (with data interface), 25-50mm/1-2″, .0002mm/.00001″, 6940561982176

Measure the groove diameter of shafts and keyways
Absolute encoder, the original data remains after power off
One turn of sleeve makes .2″ spindle feed
Measurement accuracy is not affected by the use of sleeve
Press the fork, the spindle retracts .12″
Linear ball bearings for ten million times use
Carbide spindle and anvil